Using large balloons will shrink the flat features and craft a running car. You need to prepare four wheels (with shafts) of a second-hand toy car, a disposable chopstick, a used ballpoint pen and 502 glue. Our production concept is to let the gas in the balloon pop out of the ballpoint pen sleeve, and under the reaction force, the power of the airflow Push the car forward.
Preparation method:
Use disposable chopsticks to connect the front and rear four wheels; unscrew the ballpoint pen, remove the lower part that exposes the pen tip, and stick it between the pen holder and the chopsticks with a small piece of disposable Put a block on the chopsticks. It will be difficult to install the balloon without a block. Then after inflating the balloon, put it on the pen holder, release your hand, and the car will start running automatically!
